In the Solar System · tracked live
Callisto
The outermost of Jupiter's four large moons and the most heavily cratered surface in the Solar System: an old, dark, frozen face that has hardly changed in four billion years. It stays outside the orbital resonance that heats its neighbours, so it was never kneaded from inside, and it seems only partly separated into rock and ice. Even so, the way it disturbs Jupiter's magnetic field suggests a thin ocean far down.
- Radius
- 2,410 km
- Around the equator
- 15,144 km
- From the Sun
- 794,683,946 km (+706,252 km/d)
- From the Earth
- 869,283,021 km (-1,253,405 km/d)
- A signal takes
- 48 min
- Goes round
- Jupiter
- Placed to within
- 482 km
Distances and speed are computed from JPL Horizons trajectories and are true of the date below, changing at the rate beside each.
Everything the map shows is worked out in your browser from published orbital data - nothing on it is a stored picture of where things were.